Tool holder



' whereby great leverage may Patented Mar. 6, 1923.

its!) s'r WALTER E. LOMBARD, or ARLINGTON, MASSACHUSETTS.

TOOL HOLDER.

. Application filed September 17, 1921. Serial No. 501,406.

To all whom it may concern:

Be it known that I, lVAUrEnE. LOMBARD, a citizen of the United States ofAmerica, and 'a resident of Arlington, in the county of Middlesex andState of Massachusetts, have invented certain new and usefulImprovements in Tool Holders, of which the following is a specification.

This invention relates to tool holders and has for its object theproduction of a device of this character which is adapted to securelyhold a selected tool in position during its use. I

A further object is the provision of means be attained to rotate thetool about its axis.

The invention consists of a handle having an elongated rectangularsocket at one end into which may be inserted the shank of a working toolthe inner end of which is provided with shoulders adapted to be engagedby pivoted jaws within said handle. v The invention further consists inlevers pivoted to the handle and adapted to be moved into positionperpendicular to the axis thereof.

Theinvention further consists in means for retaining said levers undernormal conditions in depressions in the side of the handle.

It further consists in certain novel features of construction andarrangement of parts which will be understood readily by reference tothe description of the drawings and tothe claims to be hereinaftergiven. v

For the purpose of illustrating the invention, one preferred'formthereof is illus trated in the drawings, this form having been found .togive satisfactory and reliable results although it is toibe understoodthat the various instrumentalities of which the invention consists canbe variously arranged and organized and the invention is not limited tothe precise arrangementand organization of these instrumentalities asherein shown and described except as required by the scope of theappended claims.

Of the drawings: 1 j c Figure 1 represents a longitudinal section of atool handle embodying the principles of thepresent invention; j v Figure 2 represents a transverse section on line 2, 2, on-FigJl.

Figure 3 represents a transverse section on line 3, 3, on Fig. 1.

Figure at represents a transverse section on line 4., 4;, on Fig. 1.

Figure 5 represents a transverse section on line 5, 5, on Fig. 1.

Figure 6 represents a transverse section on line 6, 6, on Fig. 1.

Flgure 7 represents a front elevation of a screw driver adapted to beused with the tool handle.

Figure 8 represents an edge same. 7

F lgure 9 represents a front elevation of a spanner wrench adapted to beused with said handle, and

Figure 10 represents a front elevation, partly in section, of a socketwrench adapted view of the to be used with the handle.

Similar characters indicate like parts throughout the several figures ofthe drawmgs.

In the drawings, 10 is a cylindrical member havlng a chamber 11 thereinin which are positioned twopivoted gripping jaws 12 of Wl'llCh thefulcrum pin 18 extends through the cylindrical member 10' and is rivetedthereto as indicated in Fig. 5.

These working jaws 12 have elongated extensions or arms 14 in the'upperends of which are the inclined slots 15.

Through the inclined slots 15 extends a p1n 16 mounted in the slidablecollar 17, the periphery of which is provided with a screw threadfitting and coacting with the helical thread of the rotatable nut 18.

One end of the nut 18 bears against a shoulder 19 on the cylindricalmember 10 while the opposite end thereof bears against is adapted toreceive the shank 27 of a working tool.

This working tool may be in the form ofa screw driver as indicated inFigs. 7 and 8 of the drawings, in the form of a spanner wrench as inFig. 9 of the drawings, or a socket wrench as in Fig. of the drawings 1or some other form of working tool may be used.

upon these gripping jaws 12 will be opposite to the depressions 28 inthe shank 27.

By rotating the nut 18, the slid-able member 17 may be moved endwise inthe direction of the arrow a on Fig.1 of the draw- .ings thereby causingthe pin 16 to move lengthwise of the oppositely disposed slots 31 formedin the reduced shank 32 of the cylindrical member 10.

This-movement of the pm 16 acting upon the walls of the inclined slots15will cause the gripping jaws 12 to be moved about the ivot 13 and thetransverse projections 30 to enter the depr'essions28 in the shank 27 ofthe working tool beingnsed.

hen this operation has been performed, the working tool will be securelyheld in position inthe tool handle and its accidental displacement willbe effectually prevented.

The upper end of the chamber 11 is preferably ddsed-bymeans of a plug 33welded or otherwise secured therein.

The reduced extension 32 of the cylindrical member 10 is forkedandpositioned within a socket inthe lower end of the body portion 22 asindicated in Fig. 1 of the drawings'and is secured rigidly in positionby means of the fulcrum. pin 34 and a second pin 35 parallel to saidfulcrum pin. On said fulcrum pin 34: are mounted two levers 36, thelower "end of each of which is provided with two ears 37 interlockingthe ears 37 on the other lever as indicated in Fig. 3' ofthe drawings.

The body portion 22 of the tool handle is provided with oppositelydisposed depressions 38 extending longitudinally thereof.

The long arms, of the levers 36 are under normal conditions positionedin these de-' pressions 38aswindicated in Fig. 1 of the drawings, whilethe ears 37 of said levers 36 are positioned-within a slot 39 extendingtransversely of the handle through the body portion 22 and the reducedextension, 32. H i

The cats 37; are provided with notches 40 which are adaptedto' straddlethe second pin 35 when thelevers 36 have been moved about tl'lG'tXlS ofthe fulcrum pin 34: into a position perpendicular to the axisof the toolhandle as indicated in dotted lines in Fig. 1.

The fulcrum pin 34' is provided with a threaded head 42 by which saidpin may be secured in position in the body portion 22 of the toolhandle.

Surrounding the pin 34 and bearing against the outer faces of the ears37 are spring washers 43 which create sufiicient friction upon the ears37 to retain the levers 36 in their adjusted position whether extendinglongitudinally of the axis of the handle or perpendicular thereto.

Surroundingthe pin 16 and between the outer walls of the extensions 1and the opposite walls of the chamber 11, are preterably positionedwashers 44c.

The tool handle is designed essentially for use of drivers of motor carsand is intended to be supplied with the necessary screw drivers andwrenches and other working tools to fit the various screws and'nuts uponthe car. V

In many cases it would be difficult'to rotate a screw or nut by simplygrasping the body portion of the handle. In such cases provision is madewhereby additional leverage'may be secured. i

This is accomplished by the operator moving the levers 36'intothe.dotted positions shown in Fig. 1 ofthedrawings.

In some CtlSB'SJIl cramped quarters. a

single lever 36 may be used or both levers 7 may be used alternatelyunder certain conditions.

It is believed that the operation and many advantages oftheinventionwill be understood without further description.

Having thus described my invention, I claim:

1. In a'device ofthe class described, a handle having at one end anenclosed chamber terminating in an elongated socket adapted to receivethe shankof a working tool; positively heldgrippin-g means wholly withinthe chamber of said handle for preventing displacement of said tool; andmeans surrounding said handle for adjusting said gripping means.

2. In a device, of the class described, a handle having at one end anenclosedchamber terminating in an elongated flat-sided socket adapted toreceive the shank of a working tool; pivoted jaws wholly within thechamber of said handle adapted to grip the portion of said shank withinsaid chamber and prevent its accidental removal; and means forpositively holding said jaws in adjusted position. 1 j

- 3. In a device of the class described, a handle having at one end-anenclosed chamber termniating in an elongatedflat-sided socket adapted toreceive the shank of a working tool; two members wholly within thechamber of said handle and pivoted thereto provided at one end with jawsadapted to grip the: portion of said shank within said chamberandfhaving inclined slots at their opposite ends; a slidable mem--mounted in said member and ber within said handle having a pinextending through said inclined slots; and means on said handle formoving said slidable member.

4:. In a device of the class described, a handle having at one end anelongated flatsided socket adapted to receive the shank of a workingtool; two members wholly within said handle and pivoted thereto providedat one end with jaws adapted to grip said shank and having inclinedslots at their opposite ends; a threaded collar Within said handlehaving a pin extending through said inclined slots; and means onsaidhadle restrained from end movement and engaging the thread of saidcollar and adapted in its rotation to move said collar endwise. 5. In adevice of the class described, a handle having at one end an enclosedchamber terminating in 'an elongated fiat-sided socketadapted to receivethe shank of a working tool; and pivoted jaws wholly within the chamberof said'handle having transverse projections adapted to grip the portionof said shank within said chamber and prevents its accidental removal.

6. In a device of the class described, a

handle having at one end an enclosed chamber terminating in an elongatedfiat-sided socket adapted to receive the shank of a working toolprovided with opposed transverse depressions at the inner end thereof;and pivoted jaws wholly within said handle having transverse projectionsadapted to enter the depressions of said shank within said chamber andprevent its accidental removal.

7. In a device of the class described, a handle; a member one end ofwhich is secured to said handle and provided with a chamber, and theother end of which is pro vided with a fiat-sided socket communicatingwith and in alinement with saidcham-v her; said socket being adapted toreceive the shank of a working too-l; two shank-gripping jaws withinsaid chamber; a pivot pin extending transversely thereof through bothjaws; a slidable non-rotatable member surrounding said chambered member;means actuated thereby for moving said jaws about their pivot pin; and arotatable member fixed as to end movement adapted in its rotation tomove said slidable member endwise.

8. In a device of the class described, a handle; a member one end ofwhich is secured to said handle and provided with a chamber, and theother end of which is provided with a fiat-sided socket communicatingwith and in alinement with said chamber; said socket being adapted toreceive the shank of a working tool; two shank-gripping jaws within saidchamber movable about a pivot pin extending transversely of said chamberthrough both jaws; a slidable non-rotatable member surrounding saidchambered member; means actuated thereby for moving said jaws abouttheir pivot pin; and a rotatable member fixed as to end movement adaptedin its rotation to move said slidable member endwise.

9. In a device of the class described, a handle; a member one end ofwhich is secured to said handle and provided with a chamber, and theother end of which is provided with a fiat-sided socket communicatingwith and in alinement with said chamber, said socket being adapted toreceive the shank of a working tool; two shank-grip:

ping pivotally mounted jaws within said chamber, and each provided withan inclined face at its upper end; a slidable non-rotat able membersurrounding said chambered member; means actuated thereby and coactingwith each inclined face to move each jaw about its pivot; and arotatable member fixed as to end movement adapted in its rotation tomove said slidable member end- 10. In a device of the class described, ahandle; a member one'end of which is secured to said handle and providedwith a chamber, and the other end of which is provided with a fiat-sidedsocket communicating with and in alinement with said chamber, saidsocket being adapted to, receive the shank of a working tool; twoshank-gripping jaws pivotally mounted within said chamber, and eachprovided with an inclined slot at its outer end; a slidablenon-rotatable member surrounding said chambered member; a pin carriedthereby and extending through said inclined slots to move said jawsabout their pivot; and a rotatable member fixed as to end movement andthreaded to said slidable member whereby in its rotation it is adaptedto move endwise said slidable member and the pin carried thereby.

Signed at Boston, in the county of Suffolk, and Commonwealth ofMassachusetts, this 16th day of September, 1921.

WALTER E. LOMBARD.

